25213505014435 has 16 divisors (see below), whose sum is σ = 30314211861600. Its totient is φ = 20132169152256.

The previous prime is 25213505014421. The next prime is 25213505014457. The reversal of 25213505014435 is 53441050531252.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25213505014435 is a prime.

It is a super-2 number, since 2×25213505014435² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3421876 + ... + 7882654.

It is an arithmetic number, because the mean of its divisors is an integer number (1894638241350).

Almost surely, 2^{25213505014435} is an apocalyptic number.

25213505014435 is a deficient number, since it is larger than the sum of its proper divisors (5100706847165).

25213505014435 is a wasteful number, since it uses less digits than its factorization.

25213505014435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462950.

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 25213505014435 its reverse (53441050531252), we get a palindrome (78654555545687).

The spelling of 25213505014435 in words is "twenty-five trillion, two hundred thirteen billion, five hundred five million, fourteen thousand, four hundred thirty-five".